A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5999-00-072-0045
NSN 7035-00-679-9027
NSN 6610-00-114-8794
NSN 6150-01-298-1829
NSN 5930-01-265-9316
NSN 6130-01-628-0953
NSN 5945-00-372-3586
NSN 6135-00-078-9931
NSN 6150-01-420-6494
NSN 5925-00-679-5344
NSN 7035-00-546-2560
NSN 5935-00-868-8237